:root{--ink:#12213b;--muted:#728095;--accent:#167d8d;--line:#dce2e9;--rail:#f5f7f9;--danger:#bd4050}*{box-sizing:border-box}body{margin:0;background:#fff;color:var(--ink);font:16px/1.6 -apple-system,BlinkMacSystemFont,"PingFang SC","Noto Sans CJK SC",sans-serif}a{color:inherit;text-decoration:none}button,input,textarea,select,.button{font:inherit}button,.button{display:inline-flex;align-items:center;justify-content:center;padding:10px 18px;border:1px solid var(--line);border-radius:6px;background:white;color:var(--accent);cursor:pointer;white-space:nowrap;gap:8px}button:hover,.button:hover{background:#edf6f7}button:disabled{opacity:.45;cursor:default}.primary{background:var(--accent);border-color:var(--accent);color:white}.primary:hover{background:#126c7a}.danger{color:var(--danger);border-color:#e9c4c9}.plain{border:0;background:none;padding:4px;font-size:13px;color:var(--muted)}:focus-visible{outline:3px solid #68b4c3;outline-offset:3px}aside{width:236px;position:fixed;inset:0 auto 0 0;background:var(--rail);border-right:1px solid var(--line);padding:30px 16px;display:flex;flex-direction:column}.brand{font-size:28px;font-weight:750;padding:0 18px}nav{display:grid;gap:10px;margin-top:46px}nav a{padding:16px 20px;border-radius:6px}nav a.active{background:#e3eff2;color:var(--accent);font-weight:650}.account{margin-top:auto;border-top:1px solid var(--line);padding:22px 10px;display:flex;justify-content:space-between}main{margin-left:236px;padding:34px 34px 20px;max-width:1900px}header{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-bottom:32px}h1{font-size:40px;line-height:1.3;margin:12px 0 16px;letter-spacing:-1px}h2{font-size:21px;margin:0 0 8px}.muted,.breadcrumb,small{color:var(--muted)}.breadcrumb{font-size:15px}.actions{display:flex;gap:14px;flex-wrap:wrap}label{display:block;font-weight:600;margin-bottom:20px}input,textarea,select{display:block;width:100%;border:1px solid #ccd4de;border-radius:5px;padding:10px 12px;margin-top:10px;background:white;color:var(--ink);font-weight:400}textarea{resize:vertical;min-height:160px}input[hidden]{display:none}.button{margin:0;font-weight:500}.panel{border:1px solid var(--line);border-radius:8px;padding:24px}#editor{display:grid;grid-template-columns:320px minmax(0,1fr);gap:18px}.metadata #cover{width:100%;max-height:330px;object-fit:contain;margin:0 0 14px;border-radius:5px}.metadata p{font-size:13px}.section-title{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:26px}.section-title h2{margin:0}#pages{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.page{position:relative;border:1px solid var(--line);padding:14px;border-radius:7px}.page img{width:100%;height:240px;object-fit:contain;background:var(--rail);border-radius:4px}.page-number{position:absolute;top:12px;left:12px;background:var(--accent);color:#fff;padding:0 8px;border:2px solid #fff;border-radius:5px}.page-controls{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:12px}.page-controls button{font-size:13px;padding:7px 3px}.drop{border:2px dashed #cbd4df;border-radius:6px;background:#fafbfc;text-align:center;padding:44px 12px;margin-top:30px;color:var(--muted);cursor:pointer}.drop small{display:block;margin-top:10px}footer{border-top:1px solid var(--line);padding:24px 0;margin-top:30px;color:var(--muted);font-size:14px}.filters{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);padding-bottom:22px}.filters label{display:flex;align-items:center;gap:15px;margin:0}.filters select{width:180px;margin:0}.book-row{display:flex;align-items:center;gap:22px;border-bottom:1px solid var(--line);padding:24px 0}.book-row img,.no-cover{width:120px;height:100px;object-fit:contain;background:var(--rail);border-radius:6px}.no-cover{display:grid;place-items:center;font-size:13px;color:var(--muted)}.book-info{flex:1;min-width:0}.book-info p{margin:4px 0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.book-info span{font-size:13px;color:var(--accent)}.empty{text-align:center;padding:100px 20px;color:var(--muted)}.settings{max-width:760px}.settings label{margin-top:26px}.login{background:var(--rail);display:grid;place-items:center;min-height:100vh;padding:24px}.login form{background:#fff;padding:44px;max-width:480px;width:100%;border:1px solid var(--line);border-radius:10px}.login h1{font-size:32px}.login button{width:100%}.error{color:var(--danger)}#notice{position:sticky;top:10px;z-index:10;background:#e7f4f0;border:1px solid #a7d5c6;border-radius:6px;padding:12px 18px;margin-bottom:18px;white-space:pre-wrap}#notice.error{background:#fff0f1;border-color:#e6b5bb}dialog{width:min(1000px,94vw);border:1px solid var(--line);border-radius:10px;padding:24px;color:var(--ink)}dialog::backdrop{background:#12213bbb}#preview-image{width:100%;height:65vh;object-fit:contain}dialog .actions{justify-content:center}[hidden]{display:none!important}@media(max-width:1150px){#editor{grid-template-columns:270px minmax(0,1fr)}#pages{grid-template-columns:repeat(2,minmax(0,1fr))}.page img{height:190px}aside{width:190px}.brand{font-size:24px;padding:0 8px}main{margin-left:190px;padding:28px}}@media(max-width:760px){aside{position:static;width:auto;padding:15px 20px;flex-direction:row;align-items:center;justify-content:space-between;border-right:0;border-bottom:1px solid var(--line)}.brand{font-size:20px}nav{display:flex;margin:0;gap:6px}nav a{padding:8px;font-size:13px}.account{display:none}main{margin:0;padding:24px 18px}header{align-items:flex-start;flex-direction:column;gap:10px}h1{font-size:32px}#editor{grid-template-columns:1fr}#pages{grid-template-columns:repeat(2,minmax(0,1fr))}.metadata #cover{height:220px}.panel{padding:18px}.book-row{flex-wrap:wrap;gap:12px}.book-info{min-width:160px}.book-row img{width:80px}.actions{gap:8px}button,.button{padding:9px 13px}.page{padding:9px}.page img{height:170px}.login form{padding:28px}}

.page-controls audio { max-width: 100%; width: 240px; }